Sewing-machine binder.



A. H. DE VOE.

SEWING MACHINE BINDER; APPLlCATION m en AUG.2I. 1914.

1,275,159. aw -g6, 191s.

I/VI/ENTOR BY u ATTORNEY t .tion formed TTNITE'D STATES PATENT eer e n ALBERT H. DE voE, or wEsTEIELn, NEW JERsEY, A-ssIeNoR To HE SINGER MANUFAC- TUBING COMPANY, A CORPORATION or NEW JERSEY.

SEWING-MACHINE BlNDER.

Application filed-August 21, 1914. Serial No. 857,805.

To all whom it may concern: v

Be it known that I, ALBERT H;DE Von, a citizen of the United-States, residingrat Westfield, in the county of Union and State ofNew Jersey, have invented certain new and useful Improvements in Sewing* Machine Binders, of which the following is a specification, reference being had thereinito the vide a binder which is simple and inexpensive inconstruction and which 1s capable of delivering a binding tape accurately to a body fabric whose edges are formed with' scalloped or abrupt curves or angles as in the buttonhole flaps of certainclasses of shoes or slippers having. projecting tongues formed with the buttonholes, and in certain other articles.

The binder is preferably constructed of a sheet metal blank bent over upon itself longitudinally to form a base portion and anvoverhanging portion of single thickness with a rounded connecting porwith a transverse tape-slots through which a tape may be threaded. to contact alternately with the outer'and inner faces of said rounded portion and presented from, the exterior of said rounded portion through a notch at the delivery end thereof vto'the edge of the body fabric to which it is secured by stitching. v

In. he drawings, Figure 1 is a perspectlve view of a portion of a sewing machine provided with a binderconstructed in accord- .ance with the presentimprovement.- Fig. 2 :is a top plan view, Fig. 3 a bottomplan view,

Fig. .4aside .elevation and Fig. 5 a rear end elevation of the binder detached, The body of thebinder is shown formed of a single piece of sheetfmetal which is bent over upon tself longitudinally to form the base portion 1, the overhanging portion 2 and the rounded intermediate tape-guiding portion 3 forming between them a substantially laterally closed channel, the portion'3 having a flat rearward extension iand'the parts 1 an'd2 having the spaced and. overlapping forward extensions 5 and,6 separated by a central notch 7 at the delivery end of the rounded portion 3. Theshell or single wall of the binder is cut at an angle to its longitudinal axis to form a beveled delivery end portion, A binding strip inserted Specification of Letters Patent.

Patented Aug. 6, 1918 through one'or more incisions in the wall and passed through the notch 7 formed by the beveled end may be inverted. Thus a strip led to the stitchingpoint at an angle to the line of feed may be turned inside out and applied to a body fabric together with whlch it moves in parallelism with the line of'feed.

The interm'ediate portion 3 is provided with a series of-transversetape-apertures or slots 8, 9,10 and-11, the slot Sbeing dis osed closely adjacent the delivery end 0 the binder and' said slot, with the'one'next it, being preferably backwardly inclined 'as and 4. Theextensions'ti and6 terminate in the lateral guide-pins or projections 12 and 13 which are shown disposed at different distances from the bottom of the notch 7 and are designed'to' engage and guide the opposite edges of the binding tape in its delivery to theedge of the body fabric.

While the curved edge of the notch 7 evidently forms a U-shaped bending element over which the tape may be drawn transversely to the guiding or forming portion 3, as in the ordinary English binder, it is preferably supplemented by a block 14 secured transversely in the mouth of the represented more'particularly in Figs, 2, 3

binder and having its J operative surface V shaped to conform'with the U-shaped tapeturning edge thereof, so as to present a guiding'surface forthe turnedbinding and the edge of the body fabric embraced thereby.

: needle 21 cooperating with a suitable looptaker beneath the bed-plate; I As represented in Fig. 1, the machine is provided with feeding mechanism including the feed dog 22 opposed to which are the main presserfoot 23 and the walking presser-foot 24: secured to the swinging resser-bar 25.2

In the use of the attachment, the binding tape t may be ledfrom the source of supply and threaded successively'through the slots .11, 10, 9 and 8 in such manner as to rest w alternately against the concave inner and convex outerface of the guiding element 3, issuing from the aperture 8 and being drawn over the intermediate convex portion of the element 3 and transversely thereto through the notch 7 from which it passes between the throat-plate and the presser-feet, as represented in Fig. l, the edge of the body fabric on being introduced between the upper and lower plies of the tape as thus formed and folded,

As shown in the drawings, the binder is designed to form awider overlap of thetape upon the lower than the upper margin -of thebody fabric, and the inclinationof the slots 8 and 9 and their position is such asto cause the crowdingof the lower edge of the tape against'the guide-pin .13 to insure unic-formity inlthe presentation of the tape to the margin of the body fabric. To this-end, these two tape-apertures arelinclined downwardlyand forwardly toward the delivery :endof the-binder and their lower extremities extend laterally at'the bottom somewhat be yond their upper extremities as indicated more, particularly in Figs. 8; and .4.

Bythe present construction,thetape t enters the binder in substantiallyflat condition andis gradually formed into 2U-shape cross-section by. contact alternately with the taper innerand outer: facesof the guiding element:3, a tension being imposedrthereon by :its. engagement with the edges, 0f=5tl16 transverse slots. At the delivery end ofthe hinder, the tape isabrupt-1y arched by its passage over the part of the member 3 :between the slot 8 and notch 7 so that it is at all times maintained taut at its point of delivery to the margin of the body fabric. Thus, the-effective control of thentape at its point of delivery adapts thebinder for operation witlrprecisionin binding the: edge of a body: fabric having short or abrupt curvature or .angles without liability to pucken or to imperfect application of the tape so as to :vary the spacing'o'f the fastening stitches from theedges ofthetape.

From the nature of the improvement as thus described, and as shown in thedrawings, it is obvious-that, not only-isthe horizontal width of theztape-guiding element 3 at its delivery end necessarily equal to or greater than the length of the adjacent transverse tape-aperture 8 and the tape issuing therefrom, but that the tape-turning I edge ofthe" notch 7 niustbe at least as long as the' width of the tape or the length of said tape-aperture, the tape being supported throughout its width upon the convex face of the guiding element 3 to the extreme delivery end of the latter. "By reference to the "drawingit'will be observed that the tape-aperture 8 is much closer to the extremity of the guiding element'3 than its own length, and-that it therefore performs its controlling function thereon as close as possible tothe tape-turning edge ;of the notch 7 so as to insure precision in the ultimate delivery of the tape to the stitch-forming mechanism. 1

Having thus set'forth the nature of the invention, what I claim herein is 1. A sewing machine binder constructed with a tape guiding element havinga wall formed in a single thickness substantially throughout it xlength and provided adjacent its delivery end with a tape-aperture extending through s ai d 1 wall,- said element 1 ,at

.its delivery end having ;a tape.-..t,urning'=dge of a length not les than thetlength of: said 1 ap erture.

22. it sewing machine binder constructed with atape-guiding elementhaving a wall frmed :in a single thickness substantially through-out its length with a convex outer face and concave innervfacewafidhaving;,a

lurality ;of transverse slots extending 1 through the same .of 'whi'ch .one is-adj acent the delivery end, a centraltguideen'otchbeing formed in the: deliverygeHd-hafing an; operative tape-turning edge of-rsnbstantiallynthe same length as the :adjacentitransverse: slot.

' 3. A sewingniachine binder-1 constructed with a shell having: respectively convex 4111C]. concave outer and iinnernfaces andiproivided with a' beveled portion "forming. a central communication between: said inner and outer faces. 1 r V 4. In an-Engllsh binder, a: shell or iWfill end portion for inverting a :strip and: pro= vided adj acent said beveled end portionwwith a'recess through which a stripmaybe passed and confined againstithe convex walhcfwthe shell immediately adjacent ltheeginverting beveled end portion. I

- 5. *An English binder consisting of a shell or single wall provided with a beveled: end portion for inverting a stripz and having an incisioned body-portion constructed to act upon; and flex 1H opposite direct-lens both faces of a tape in advance 0f 1tS1IlVBlfS1011.

notch at: its delivery endfor inverting a -tape and an adjacent tape-'ap'erturealfordipg -of -U-shape'crOss Section having a= beveled of feed and inverting 'it into'parallelism with the edge of a fabric tobe b ound, a-single-wall-member with convex and concave "faces andhavingabeveled delivery end,

edgecontr0lling fingers, and one or more recesses in the wall adjacent the beveled delivery end.

8. In an English binder, a sheetmetal wall bent between its edges in the shape of a U having a beveled delivery end and provided with a tape-guiding body portion having a, plurality of incisions therein inclined to the vertical of which one is immediately adjacent the beveled delivery end whereby a strip may be led to the line of stitching in a direction at substantially right angles thereto and inverted close to the stitching point.

'9. An English binder consisting of a shell or single-wall-member bent between its edges to form superimposed portions of unequal width and having a beveled delivery end for inverting a strip, said shell or Walled member being provided adjacent said end portion with an aperture through which a strip may be passed and confined against the outer face of the shell immediately adjacent the inverting beveled end.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribing witnesses.

ALBERT H. DE VOE.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. 0. 

